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Intermittent Faster Roll to Roll Coating System for Pilot Scale of Battery ElectrodeIntermittent Faster Roll to Roll Coating System for Pilot Scale of Battery ElectrodeIntermittent Faster Roll to Roll Coating System for Pilot Scale of Battery Electrode

Intermittent Faster Roll to Roll Coating System for Pilot Scale of Battery Electrode

    The intermittent lithium battery coater is a three-roll transfer coating equipment, which is convenient for use in the surface coating process of various substrates. Especially used in the lithium-ion battery industry, the device is designed to facilitate the use of researchers, while meeting the requirements of coating accuracy and consistency equal to production, excellent drying effect, is the ideal choice for lithium-ion batteries, ultracapacitors, nickel batteries and other secondary battery research and development

The intermittent lithium battery coater is a three-roll transfer coating equipment, which is convenient for use in the surface coating process of various substrates. Especially used in the lithium-ion battery industry, the device is designed to facilitate the use of researchers, while meeting the requirements of coating accuracy and consistency equal to production, excellent drying effect, is the ideal choice for lithium-ion batteries, ultracapacitors, nickel batteries and other secondary battery research and development. 

1. Features: 

· Substrate tension control, strip stability, deviation correction device;

· Hot air oven, upper and lower double-sided blowing, high quality drying effect;

· Three-roll transfer coating, with a wide coating window;

· Comma scraper metering, with precision adjustment mechanism, to obtain high coating accuracy;

·PLC control, touch screen operation, easy to use;

· Optional solvent recovery treatment device;

1. Technical parameters and main configuration of the equipment 

(1) Equipment functions: 

Project

Technical parameters

Suitable system

Lithium iron phosphate, lithium cobalt, lithium manganate, graphite, silicon carbon and other system battery   positive, negative plate coating process

Coating method

Continuous coating, intermittent coating transfer coater

Number of oven sections

3 sections 1.5m oven

Mechanical speed

Not less than 4.5m/min

Run substrate thickness

Aluminum foil (Al) : 8 ~ 30um

Copper foil (Cu) :8~30um

Roll face design width

400 mm

Guarantee the width   of the

coating

No less than 280mm

Coating roller, backing roller

Diameter 120mm

Scraper roller

80mm diameter

Coating accuracy

Better than ±3um (margin error ±5um)

Double sided coating   weight

accuracy(mg/cm2)

Coating center value ±1.0%

Suitable for paste   viscosity

2000~12000 (mPas)

Apply dry thickness   fan on one side wai

30 to 200μm

Thickness adjustment

Free adjustment, the dial indicator shows accuracy of 1um

Coating length

Clearance: single piece Max.10000mm, white 8 ~ 120mm, fine

Degree ±0.5mm

Rectifying accuracy   of

winding

+ / - 0.5 mm

Solvent characteristics

Oil-based solvent NMP(s.g=1.033,b.p=204℃)

Suitable for solid   content range

20 ~ 85%

Coating size accuracy   (mm)

L≤±1, W≤±0.5

Alignment accuracy   of front and back (mm)

L≤±1, W≤±0.5

  

(2) The structure of each part:

Integral winding, head mechanism:

 

Items

Technical   parameter

Overroll mounting structure

The steel frame is firmly installed

Overroll finish

Metal aluminum roll surface oxidation

Tension control system

Automatic control of constant tension, tension range 0~50N

Correction mode

Automatic EPC control, stroke 50mm

Winding method

The material roll is fixed with 3- inch inflatable shaft;

Uncoil single inflatable shaft

Maximum unwinding reel diameter

Ф 300 mm

Maximum bearing capacity of

inflatable shaft

80KG

Number of inflatable   shaft strips

1 strip

Main drive motor

Servo motor

Overroll finish

Metal aluminum roll surface oxidation, circular runout ≤30um

Scraper structure

Double-sided comma scraper

Applicator roll (steel roll)

Hard chrome coated surface

Back roller(rubber roller)

Surface wrap imported EPDM

Adjust the intermittent height of the scraper

Manual adjustment;

Stand-alone head position

Install and operate before drying path

 

(3) Baking road

 

Items

Technical parameter

Oven structure

3 sections individually heated in top and bottom   arrangement

Oven length

1.5m/knot, a total of 3 sections,  three sections temperature control

Material

SUS304 stainless steel

Temperature control

Divided into normal working temperature control,

overtemperature monitoring alarm  protection control, each section  is completely independent control

Heating mode

Electric heating, hot air circulation structure

Single oven heating   power

9KW,3 sections total 27KW

Temperature in the bake

Design Max150℃, single section oven temperature difference ≤5℃

Blowing method

Upper and lower air blowing, upper and lower air room   sharing heating body

Air nozzle structure

The air nozzle groove is slotted by special mold

Fan control

Contactor control

Heating control

Solid state relays

Fan material

SUS304 stainless steel

Solvent recovery system

Optional

(4) Winding mechanism: the function is the same as that of winding, as follows 

Items

Technical parameter

Travel correction

Outlet bake installation

Tension

Automatic control of constant tension, tension range 0~80N

Installation structure

Steel frame firmly installed

Number of winding inflatable shafts

1 single arm winch

 

(5) Control system:

 

Items

Technical parameter

Main control system

Touch screen, PLC, module, servo system

Operation mode

Manual, automatic, emergency stop; The machine can be   operated before and after

Alarm situation

When the device fails, the touch screen will display the   corresponding correction screen

 4. Equipment accuracy:

1. Hardware accuracy 

Items

Technical parameter

Scraper

Circle jump ≤±1.5um, Ra0.4,

straightness ≤±1.5um

Coating roller (steel roller)

Circular runout ≤±1.5um, Ra0.4 straightness ≤±1.5um

Rubber roll

Circle runout ≤10um, straightness ≤ 10um

Deviation correction

+ / - 0.5 mm

 


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  • Tel: +86 371 5519 9322
  • Fax: +86 371 8603 6875
  • Add: No. 820, 8th Floor, 1st Unit, 9th Block, Cuizhu Street, High-Tech Zone, Zhengzhou, Henan, China




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